Prevent a crash, when a plugin can't be loaded.
Prevent a crash, when a plugin can't be loaded.

svn path=/trunk/kdepim/; revision=143083

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi